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Office Chair Fix

That got welded in place (without the bearing, and the fit is loose enough the bearing can be tapped out easily.)
I then machined a foot-long chunk of 1" cold-rolled steel into a new shaft, added a thick collar as a thrust surface
(used to be an old 7/8" nut, turned down and bored out, MIGged in place) and turned a 2.5" diameter shallow
"cup" to hold a tapered roller bearing at the top (also MIGged into place.)

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Information contained in these pages is for reference and entertainment purposes only.  Our methods are not always the best,
quickest, safest, or even the correct ones. It's up to you to know how to use your own machines and tools.
Keep your fingers away from the spinny blades o' death and you should be all right.